window.onload = function(){
    var login_bt = document.getElementsByClassName("login_bt")[0];
    var loginbg = document.getElementsByClassName("loginbg")[0];
    var close = this.document.getElementsByClassName("close_logindiv")[0];
    this.console.log(login_bt);
    this.console.log(loginbg);
    login_bt.onclick = function(){
    
        loginbg.style.display = "flex";
    }
    close.onclick = function(){
        loginbg.style.display = "none";
        
    }
}


